Ahmednagar is a city of Ahmednagar District in the state of Maharashtra, India, on the west bank of the Sina river, about 120 km northeast of Pune and 120 km from Aurangabad. Ahmednagar is home to 19 sugar factories and is also the birthplace of the cooperative movement. Due to scarce rainfall, Ahmednagar often suffers from drought. Marathi is the primary language for daily-life communication. Hindi is also widely understood and spoken, though of the Dakhani (or Hyderabadi Urdu) dialect, with a lot of grammar and loan words from Marathi. Ahmednagar has recently published a plan of developing the city by year 2031.

The town was founded in 1494 by Ahmad Nizam Shah on the site of a more ancient city, Bhingar. With the breakup of the Bahmani Sultanate, Ahmad established a new sultanate in Ahmednagar, also known as Nizam Shahi dynasty.

Ahmednagar Fort, once considered the second most unimpregnable fort in India, was used by the British to house Jawaharlal Nehru (the first prime minister of India) and other Indian Nationalists before Indian independence. A few rooms there have been converted to a museum. During his confinement by the British at Ahmednagar Fort, Nehru wrote the famous book The Discovery of India.